CN114326265B

CN114326265B - Lens driving device, image pickup device module, and optical apparatus

Info

Publication number: CN114326265B
Application number: CN202111519626.XA
Authority: CN
Inventors: 李甲振; 吴柾锡
Original assignee: LG Innotek Co Ltd
Current assignee: LG Innotek Co Ltd
Priority date: 2017-03-30
Filing date: 2018-03-12
Publication date: 2024-03-08
Anticipated expiration: 2038-03-12
Also published as: JP2020515889A; EP4336253A3; EP4141535A1; EP3605221A1; CN114326263B; CN114326264A; US20230358994A1; CN114326265A; CN114326264B; JP2023040131A; EP4141535B1; CN110476119A; CN117826509A; JP7242544B2; EP4336253A2; WO2018182203A1; CN110476119B; EP3605221B1; US20200033551A1; US11762168B2

Abstract

The invention relates to a lens driving device, an imaging device module and an optical apparatus. The lens driving device includes: a housing; a bobbin disposed in the housing; a magnet disposed on the housing; a first coil disposed on the bobbin; and a substrate including a second coil disposed at a position corresponding to the magnet, wherein the housing includes: a first side and a second side opposite to each other; and third and fourth sides opposite each other, wherein the magnet comprises: a first magnet unit disposed on the first side portion; a second magnet unit disposed on the third side portion; and a third magnet unit disposed on the fourth side, wherein the first magnet unit is a 2-pole magnet, and wherein each of the second magnet unit and the third magnet unit is a 4-pole magnet.

Description

Lens driving device, image pickup device module, and optical apparatus

The present invention is a divisional application of patent application 201880022438.6, which has application date of 2018, 3-12, international application number of PCT/KR2018/002876, and which enters the national stage of china on 2019, 9-27, and has the name of "lens driving device and image pickup device module".

Technical Field

The present embodiment relates to a lens driving device, an imaging device module, and an optical apparatus.

Background

The following description provides background information for the present embodiment, and does not describe the prior art.

With the widespread popularization and widespread use of various portable terminals, and wireless internet services have been commercialized, consumer demands related to portable terminals have been diversified, and various additional devices have been installed in portable terminals.

As a typical example thereof, there is an image pickup device module for taking a picture or video of a subject. Meanwhile, in recent years, a dual camera module in which two camera modules are arranged side by side has been studied.

However, in the dual camera module of the related art, the distance between the camera modules is narrow, and there is a problem in that mutual magnetic field interference occurs.

Disclosure of Invention

[ technical subject ]

The present embodiment aims to provide a structure capable of eliminating mutual interference between magnets in a structure of a lens driving device for dual OIS.

Further, in order to secure the magnetic force of the magnet for AF driving in the above-described structure, a structure for securing the length of the magnet in the z-axis direction is provided.

[ technical solution ]

The lens driving apparatus according to an embodiment includes: a housing; a bobbin disposed in the housing; a magnet disposed on the housing; a first coil disposed on the bobbin; and a substrate including a second coil disposed at a position corresponding to the magnet, wherein the housing includes: a first side and a second side opposite to each other; and third and fourth sides opposite each other, wherein the magnet comprises: a first magnet unit disposed on the first side portion; a second magnet unit disposed on the third side portion; and a third magnet unit disposed on the fourth side, wherein the first magnet unit is a 2-pole magnet, and wherein each of the second magnet unit and the third magnet unit is a 4-pole magnet.

The lens driving apparatus according to an embodiment includes: a housing; a bobbin disposed in the housing; a magnet disposed on the housing; a first coil disposed on the bobbin; and a substrate including a second coil disposed at a position corresponding to the magnet, wherein the housing includes: a first side and a second side opposite to each other; and third and fourth sides opposite each other, wherein the magnet comprises: a first magnet unit disposed on the first side portion; a second magnet unit disposed on the third side portion; and a third magnet unit disposed on the fourth side portion, wherein the second magnet unit has a number of poles greater than that of the first magnet unit.

The lens driving apparatus according to the present embodiment includes: a housing; a coil former disposed within the housing; a magnet and a dummy member disposed at the housing; a first coil disposed on the bobbin; and a substrate including a second coil facing the magnet, wherein the housing includes: a first side portion and a second side portion facing each other; and third and fourth sides facing each other, the magnet comprising: a first magnet unit disposed at the first side; a second magnet unit disposed at the third side portion; and a third magnet unit disposed at the fourth side portion, and the dummy member may be disposed at the second side portion.

The lens driving apparatus according to the present embodiment includes: a housing; a coil former disposed within the housing; a magnet disposed at the housing; a first coil disposed on the bobbin; and a substrate including a second coil facing the magnet, wherein the housing includes: a first side portion and a second side portion facing each other; and third and fourth sides facing each other, the magnet comprising: a first magnet unit disposed at the first side; a second magnet unit disposed at the third side portion; and a third magnet unit disposed at the fourth side, and the first magnet unit is a 2-pole magnet, and the second and third magnet units may be 4-pole magnets.

The first coil may include: a first coil unit facing the second magnet unit; and a second coil unit facing the third magnet unit.

The first coil further includes a connection portion connecting the first coil unit and the second coil unit, wherein the connection portion of the first coil may be disposed between the first magnet unit and the bobbin or between the dummy member and the bobbin.

The first coil includes: a first coil unit facing the second magnet unit in a horizontal direction; and a second coil unit facing the third magnet unit in a horizontal direction, wherein the second coil may include: a third coil unit facing the first magnet unit in a vertical direction; a fourth coil unit facing the second magnet unit in a vertical direction; and a fifth coil unit facing the third magnet unit in a vertical direction.

The substrate includes a hole, wherein the hole of the substrate may be formed closer to one side surface of the substrate adjacent to the dummy member.

The second magnet unit and the third magnet unit move the bobbin in the optical axis direction, and the first magnet unit, the second magnet unit, and the third magnet unit may move the housing in a direction perpendicular to the optical axis direction.

Each of the second and third magnet units includes a first surface facing the first coil, wherein the first surface may have two polarities.

Each of the first to third magnet units includes a second surface facing the second coil, wherein the second surface may have two polarities.

The lens driving apparatus according to the present embodiment includes: a housing; a coil former disposed within the housing; a magnet disposed at the housing; a first coil disposed on the bobbin; and a first substrate including a second coil facing the magnet, wherein the housing includes: a first side portion and a second side portion facing each other; and third and fourth sides facing each other, wherein the magnet comprises: a first magnet unit disposed on a first side of the housing; a second magnet unit disposed on a third side of the housing; and a third magnet unit disposed on a fourth side of the case, and wherein the first coil includes a plurality of coil units including a first coil unit facing the second magnet unit and a second coil unit facing the third magnet unit, and the coil units may not be disposed between the bobbin and the first magnet unit.

The first coil includes a plurality of coil units, and the plurality of coil units may include a first coil unit facing the second magnet unit; and a second coil unit facing the third magnet unit.

The coil unit may not be disposed between the bobbin and the first magnet unit.

The coil unit may not be disposed between the bobbin and the dummy member.

The first magnet unit may be a 2-pole magnet, and the second and third magnet units may be 4-pole magnets.

A dummy member disposed on the second side of the case may be included.

The second coil may not be disposed between the dummy member and the substrate.

The dummy member may include a non-magnetic material.

The first coil further includes a connection portion connecting the first coil unit and the second coil unit, and the connection portion of the first coil may be disposed between the first magnet unit and the bobbin or between the dummy member and the bobbin.

The substrate may include a hole, and the hole of the substrate may be formed closer to one side surface of the substrate.

The one side surface of the substrate may be adjacent to the dummy member.

The shortest distance from the other side surface located at the opposite side of the one side surface of the substrate to the hole may be greater than the shortest distance from the one side surface to the hole.

The first coil may include: a first coil unit facing the second magnet unit in a horizontal direction; and a second coil unit facing the third magnet unit in a horizontal direction, and the second coil includes: a third coil unit facing the first magnet unit in a vertical direction; a fourth coil unit facing the second magnet unit in a vertical direction; and a fifth coil unit facing the third magnet unit in a vertical direction.

The first coil unit and the second coil unit may have at least any one of an elliptical shape, a track shape, and a closed curve shape.

The second magnet unit and the third magnet unit move the bobbin in the optical axis direction, and the first magnet unit, the second magnet unit, and the third magnet unit move the housing in a direction perpendicular to the optical axis direction.

The bobbin includes a first protrusion and a second protrusion disposed at opposite sides of the first protrusion, wherein the first coil unit is disposed to surround the first protrusion, and the second coil unit may be disposed to surround the second protrusion.

The lens driving device includes: an upper elastic member provided on the bobbin, the upper elastic member being coupled to the bobbin and the housing; and a support member coupled to the upper elastic member and the substrate, wherein the first coil unit and the second coil unit are electrically connected, and the upper elastic member includes a first upper elastic unit and a second upper elastic unit spaced apart from each other, wherein one side end of the first coil unit is coupled to the first upper elastic unit, and one side end of the second coil may be coupled to the second upper elastic unit.

An image pickup apparatus module according to an embodiment includes the lens driving apparatus according to any one of the above aspects of the present invention.

An optical device according to an embodiment includes: a main body; an image pickup device module according to the previous aspect of the present invention provided on the main body; and a display provided on the main body, and outputting an image photographed by the photographing device module.

The lens driving apparatus according to an embodiment includes: a housing; a bobbin disposed in the housing; a magnet disposed on the housing; a first coil disposed on the bobbin; and a substrate including a second coil disposed at a position corresponding to the magnet.

The lens driving apparatus according to an embodiment includes: a housing; a bobbin disposed in the housing; a magnet and a dummy member provided on the housing; a first coil disposed on the bobbin; and a substrate including a second coil disposed at a position corresponding to the magnet; wherein, the casing includes: a first side and a second side opposite to each other; and third and fourth sides opposite each other, wherein the magnet comprises: a first magnet unit disposed on the first side portion; a second magnet unit disposed on the third side portion; and a third magnet unit disposed on the fourth side portion, wherein the dummy member is disposed on the second side portion, and wherein the dummy member includes a non-magnetic material or has a magnetic strength weaker than that of the first magnet unit.

The image pickup device module according to the present embodiment may include a first lens driving device and a second lens driving device adjacent to the first lens driving device.

The second lens driving device is disposed adjacent to the fourth side of the housing of the first lens driving device, and the second lens driving device includes: a housing; a coil bobbin disposed within the housing of the second lens driving device; a third coil provided on an outer peripheral surface of the bobbin of the second lens driving device; a magnet disposed within the housing of the second lens driving device, the magnet facing the third coil; and a fourth coil facing the magnet of the second lens driving apparatus, wherein the magnet of the second lens driving apparatus may include four magnet units disposed at corners of the housing of the second lens driving apparatus.

The dual camera module according to the present embodiment includes a first lens driving device and a second lens driving device, the second lens driving device including a second surface facing a first surface of the first lens driving device, the first lens driving device including: a housing; a coil former disposed within the housing; a first coil disposed in the bobbin; a magnet disposed within the housing, the magnet facing the first coil; a base portion disposed below the housing; a substrate including a second coil facing the magnet and disposed on the base; an upper elastic member disposed above the bobbin, the upper elastic member being coupled to the bobbin and the housing; and a support member coupled to the upper elastic member and the base plate, wherein the magnet is disposed on a side of the housing, an upper surface of the magnet overlaps the upper elastic member in the optical axis direction, and the upper surface of the magnet may include a first portion that does not overlap the housing in the optical axis direction.

The upper surface of the magnet may further include a second portion overlapping the housing in the optical axis direction, the second portion not overlapping the upper elastic member in the optical axis direction, wherein the upper plate of the housing may be disposed above the second portion of the upper surface of the magnet.

A first portion of the upper surface of the magnet may be in contact with the upper elastic member.

In the dual camera module, the first lens driving apparatus may further include a cover coupled to the base and accommodating the housing in the cover, and a stopper protruding toward an upper plate of the cover may be provided on the upper plate of the housing.

The housing includes: a first side portion provided on a first surface side of the first lens driving device; a second side portion disposed on an opposite side of the first side portion; and third and fourth side portions disposed between the first and second side portions and disposed opposite to each other, wherein the magnet may include: a first magnet disposed on a second side of the housing; a second magnet disposed on a third side of the housing; and a third magnet disposed on the fourth side portion.

A dummy member having a mass (mass) corresponding to the first magnet may be disposed on the first side of the case.

The top plate of the case may be disposed on each of the second, third, and fourth sides, and may not be disposed on the first side.

The lens driving device according to the present embodiment includes a housing; a coil former disposed within the housing; a first coil disposed in the bobbin; a magnet disposed within the housing, the magnet facing the first coil; a base portion disposed below the housing; a substrate including a second coil facing the magnet and disposed on the base; an upper elastic member disposed above the bobbin, the upper elastic member being coupled to the bobbin and the housing; and a support member coupled to the upper elastic member and the base plate, wherein the magnet is disposed on a side of the case, and an upper surface of the magnet may be disposed on the same plane as an upper surface of the case coupled to the upper elastic member.

The dual camera module according to the present embodiment includes a first lens driving device and a second lens driving device, the second lens driving device including a second surface facing a first surface of the first lens driving device, the first lens driving device including: a housing; a coil former disposed within the housing; a first coil disposed in the bobbin; a magnet disposed within the housing, the magnet facing the first coil; a base portion disposed below the housing; a substrate including a second coil facing the magnet and disposed on the base; wherein the housing comprises: a first side portion provided on a first surface side of the first lens driving device; a second side portion disposed on an opposite side of the first side portion; and third and fourth side portions disposed between the first and second side portions and disposed opposite to each other, wherein the magnet may include: a first magnet disposed on a second side of the housing; a second magnet disposed on a third side of the housing; and a third magnet disposed on the fourth side, wherein the second coil includes: a first coil unit facing the first magnet; a second coil unit facing the second magnet; and a third coil unit facing the third magnet, and a number of turns of the coil wound on the first coil unit may be greater than a number of turns of the coil wound on the second coil unit.

A dummy member including a non-magnetic material may be disposed on the first side of the case.

The number of turns of the coil wound on the third coil unit may correspond to the number of turns of the coil wound on the second coil unit.

The central axis of the bobbin may be disposed eccentrically from the central axis of the first lens driving device toward the dummy member.

The substrate may include a through hole corresponding to a lens coupled to the bobbin, and the through hole may be eccentrically disposed toward the first surface of the first lens driving device.

The substrate comprises: a through hole; an inner peripheral surface formed by the through hole; a first side surface disposed on the first side of the housing; and a second side surface disposed on the second side portion of the case, wherein the first coil unit is disposed between the inner peripheral surface of the substrate and the second side surface of the substrate, and the second coil may not be disposed between the inner peripheral surface of the substrate and the first side surface of the substrate.

The substrate comprises: a first side surface provided on the first surface side of the first lens driving device; a second side surface disposed on an opposite side of the first side surface; and third and fourth side surfaces disposed on opposite sides to each other between the first and second side surfaces, wherein a distance between the third and fourth side surfaces may be longer than a distance between the first and second side surfaces.

The second coil includes: a first coil unit facing the first magnet; a second coil unit facing the second magnet; and a third coil unit facing the third magnet, wherein a length of the first coil unit in the length direction may be longer than a length of each of the second coil unit and the third coil unit in the length direction.

The second lens driving device includes a housing; a bobbin disposed in a housing of the second lens driving device; a first coil provided in a bobbin of the second lens driving device; a magnet disposed in the housing of the second lens driving device, the magnet facing the first coil of the second lens driving device; a base portion disposed below the housing of the second lens driving device; and a substrate disposed on the base of the second lens driving device, the substrate including a second coil facing the magnet of the second lens driving device, wherein the magnet of the second lens driving device may include four corner magnets disposed at four corners disposed between four sides of the housing of the second lens driving device.

The lens driving apparatus according to the present embodiment includes: a housing; a coil former disposed inside the housing; a first coil disposed in the bobbin; a magnet and a dummy member disposed in the housing and facing the first coil; a base portion disposed below the housing; and a substrate disposed on the base, the substrate including a second coil facing the magnet, wherein the housing includes a first side; a second side portion disposed at an opposite side of the first side portion; and third and fourth sides disposed between the first and second sides and disposed on opposite sides to each other, the dummy member being disposed on the first side of the case, the magnet including a first magnet disposed on the second side of the case, a second magnet disposed on the third side of the case, and a central axis of the bobbin may be eccentrically disposed from a central axis of the case toward the dummy member.

Advantageous effects

With the present embodiment, the mutual interference between magnets in the structure of the lens driving apparatus for dual OIS can be minimized.

Further, in the above-described structure, the magnetic force for AF driving can be ensured.

Drawings

Fig. 1 is a perspective view showing a dual camera module according to the present embodiment.

Fig. 2 is a perspective view showing a state in which a cover of each of the first lens driving apparatus and the second lens driving apparatus according to the present embodiment is removed.

Fig. 3 is a perspective view showing an arrangement structure of a magnet, a coil, and a dummy member of each of the first lens driving device and the second lens driving device according to the present embodiment.

Fig. 4 is an exploded perspective view of the first lens driving apparatus according to the present embodiment.

Fig. 5 is an exploded perspective view of a first mover of the first lens driving apparatus according to the present embodiment.

Fig. 6 is an exploded perspective view of a second mover of the first lens driving apparatus according to the present embodiment.

Fig. 7 is an exploded perspective view of a stator of the first lens driving apparatus according to the present embodiment.

Fig. 8 is an exploded perspective view of an elastic member of the lens driving apparatus according to the present embodiment.

Fig. 9 is a sectional view of the first lens driving apparatus according to the present embodiment.

Fig. 10 is a sectional view of a part of the first lens driving apparatus according to the present embodiment.

Fig. 11 is a plan view of a part of the first lens driving apparatus according to the present embodiment.

Fig. 12 is an exploded perspective view of the second lens driving apparatus according to the present embodiment.

Fig. 13 is a diagram showing the magnetic field distribution of the magnet of the dual camera module according to the comparative example.

Fig. 14 is a diagram showing the magnetic field distribution of the magnet of the dual camera module according to the present embodiment.

Fig. 15 is a perspective view of an optical apparatus according to the present embodiment.

Detailed Description

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the technical spirit of the present invention is not limited to the described embodiments.

In describing components of embodiments of the present invention, terms such as first, second, A, B, (a) and (b) may be used. These terms are only used to distinguish one element from another element and do not limit the nature, order, or sequence of elements.

When an element is referred to as being "connected," "coupled," or "coupled" to another element, it can be directly connected, coupled, or coupled to the other element, however, it is to be understood that the other element can be "connected" or "coupled" between the elements.

The "optical axis direction" used hereinafter is defined as an optical axis direction of the lens module in a state of being coupled to the lens driving device. On the other hand, the "optical axis direction" may correspond to the "vertical direction", "z-axis", and the like.

The "autofocus function" used below is defined as the following function: adjusting the distance to the image sensor by moving the lens module along the optical axis according to the distance of the object to automatically match the focus to the object makes it possible to obtain a clear image of the object on the image sensor. On the other hand, "autofocus" may be used in combination with "Autofocus (AF)".

The "image pickup apparatus shake correction function" used below is defined as the following function: the lens module is moved or tilted in a direction perpendicular to the optical axis direction to cancel out vibration (movement) caused by external force generated in the image sensor. On the other hand, "image pickup device shake correction" may be used in combination with "Optical Image Stabilization (OIS)".

Hereinafter, a configuration of an optical apparatus according to the present embodiment will be described with reference to the drawings.

The optical device may be any one of a mobile phone, a smart phone, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a Personal Digital Assistant (PDA), a Portable Multimedia Player (PMP). However, the type of the optical device is not limited thereto, and any device for taking an image or a photograph may be referred to as an optical device.

The optical device may comprise a body 1. The body 1 may form the external appearance of the optical device. The main body 1 can house an image pickup device module 3. The display unit 2 may be provided on one side of the main body 1. For example, the display unit 2 and the image pickup device module 3 are provided on one surface of the main body 1, and the image pickup device module 3 is also provided on the other surface (surface on the opposite side from the one surface) of the main body 1.

The optical device may comprise a display unit 2. The display unit 2 may be provided on one side of the main body 1. The display unit 2 may output an image captured by the image capturing device module 3.

The optical apparatus may include an image pickup device module 3. The image pickup device module 3 may be provided in the main body 1. At least a part of the image pickup device module 3 may be accommodated inside the main body 1. A plurality of camera modules 3 may be provided. The image pickup device module 3 may be provided on one surface of the main body 1 and the other surface of the main body 1, respectively. The image pickup device module 3 may take an image of the subject. In this embodiment, the dual camera module may be applied to the camera module 3 of the optical apparatus.

Hereinafter, a configuration of the dual camera module according to the present embodiment will be described with reference to the drawings.

The dual camera module may include a first camera module and a second camera module. The dual camera module may include a first lens driving apparatus 1000 and a second lens driving apparatus 2000. The first image pickup device module may include a first lens driving device 1000. The second image pickup device module may include a second lens driving device 2000. In this embodiment, each of the first lens driving apparatus 1000 and the second lens driving apparatus 2000 may perform an autofocus function and/or an image pickup apparatus shake correction function. That is, in this embodiment, the first lens driving apparatus 1000 and the second lens driving apparatus 2000 may be an "optical image stabilization module (OIS module)", "OIS actuator", or "AF actuator". The dual camera module may include: a first lens driving device 1000 including a first surface; and a second lens driving device 2000 including a second surface facing the first surface. The first surface may be one surface of the cover 1100 of the first lens driving apparatus 1000 to be described later, and the second surface may be a surface of the cover 2100 of the second lens driving apparatus 2000 to be described later. The dual camera module may include a first lens driving device 1000 and a second lens driving device 2000 arranged side by side on the printed circuit board 11. In another embodiment, the printed circuit board 11 may be separated such that the first lens driving device 1000 is disposed on the first printed circuit board and the second lens driving device 2000 is disposed on the second printed circuit board.

The dual camera module may include a lens module. The lens module may include at least one lens. The lens module may include a lens and a barrel. The lens module may include: a first lens module coupled to the first lens driving apparatus 1000; and a second lens module coupled to the second lens driving apparatus 2000. The first lens module may be coupled to a bobbin 1210 of the first lens driving apparatus 1000. The first lens module may be coupled to the bobbin 1210 by screws and/or an adhesive. The first lens module may be integrally moved with the bobbin 1210. The second lens module may be coupled to a bobbin 2210 of the second lens driving apparatus 2000. The second lens module may be coupled to the coil form 2210 by screws and/or an adhesive. The second lens module may be integrally moved with the bobbin 1210.

The dual camera module may include a filter. The filter may comprise an infrared filter. The infrared filter may block light in the infrared region from entering the image sensor. An infrared filter may be disposed between the lens module and the image sensor. The infrared filter includes: a first infrared filter disposed under a lens coupled to the first lens driving device 1000; and a second infrared filter disposed under a lens coupled to the second lens driving device 2000. For example, infrared filters may be provided in the sensor bases 12 and 13. In another example, infrared filters may be provided in the bases 1430 and 2430.

The dual camera module may include a printed circuit board 11. The first lens driving apparatus 1000 and the second lens driving apparatus 2000 may be disposed on the printed circuit board 11. At this time, the first sensor base 12 may be disposed between the printed circuit board 11 and the first lens driving device 1000. The second sensor base 13 may be disposed between the printed circuit board 11 and the second lens driving device 2000. The printed circuit board 11 may be electrically connected to the first lens driving apparatus 1000 and the second lens driving apparatus 2000. The image sensor may be disposed on the printed circuit board 11. The printed circuit board 11 may be electrically connected to the image sensor.

The dual camera module may include an image sensor. The image sensor may be disposed on the printed circuit board 11. The image sensor may be electrically connected to the printed circuit board 11. In one example, the image sensor may be coupled to the printed circuit board 11 by Surface Mount Technology (SMT). As another example, the image sensor may be coupled to the printed circuit board 11 by flip chip technology. The image sensor includes: a first image sensor disposed at a lower side of the lens coupled to the first lens driving apparatus 1000; and a second image sensor disposed at the lower side of the lens coupled to the second lens driving device 2000. The image sensor may be arranged such that the lens coincides with the optical axis. That is, the optical axis of the image sensor and the optical axis of the lens may be aligned. The image sensor may convert light irradiated to an effective image area of the image sensor into an electrical signal. The image sensor may be any one of a Charge Coupled Device (CCD), a Metal Oxide Semiconductor (MOS), CPD, and CID.

The dual camera module may include a control unit. The control unit may be provided on the printed circuit board 11. The control unit may individually control the direction, intensity, and magnitude of the current supplied to the first coil 1220 and the second coil 1422 of the first lens driving apparatus 1000. The control unit may individually control the direction, intensity, and magnitude of the current supplied to the first coil 2220 and the second coil 2422 of the second lens driving apparatus 2000. The control unit may control the first lens driving apparatus 1000 and the second lens driving apparatus 2000 to perform an autofocus function and/or an image pickup apparatus shake correction function. Further, the control unit may perform autofocus feedback control and/or image pickup device shake correction feedback control on the first lens driving device 1000 and the second lens driving device 2000.

Hereinafter, a configuration of the first lens driving apparatus will be described with reference to the drawings.

Fig. 2 is a perspective view showing a state in which a cover of each of the first lens driving device and the second lens driving device according to the present embodiment is removed; fig. 3 is a perspective view showing an arrangement structure of a magnet, a coil, and a dummy member of each of the first lens driving device and the second lens driving device according to the present embodiment; fig. 4 is an exploded perspective view of the first lens driving apparatus according to the present embodiment; fig. 5 is an exploded perspective view of a first mover of the first lens driving apparatus according to the present embodiment; fig. 6 is an exploded perspective view of a second mover of the first lens driving apparatus according to the present embodiment; fig. 7 is an exploded perspective view of a stator of the first lens driving apparatus according to the present embodiment; fig. 8 is an exploded perspective view of an elastic member of the lens driving apparatus according to the present embodiment; fig. 9 is a sectional view of the first lens driving apparatus according to the present embodiment; fig. 10 is a sectional view of a part of the first lens driving apparatus according to the present embodiment; fig. 11 is a plan view of a part of the first lens driving apparatus according to the present embodiment; fig. 13 is a diagram showing a magnetic field distribution of a magnet of the dual camera module according to the comparative example; and fig. 14 is a diagram showing the magnetic field distribution of the magnet of the dual camera module according to the present embodiment.

The first lens driving apparatus 1000 may be a Voice Coil Motor (VCM). Further, the first lens driving apparatus 1000 may be an OIS, and may be an OIS for a dual OIS.

The first lens driving apparatus 1000 may include a cover 1100. The cover 1100 may be coupled to the base 1430. The cover 1100 may house the housing 1310 inside. The cover 1100 may form the external appearance of the first lens driving apparatus 1000. The cover 1100 may be in the form of a hexahedron with an open lower surface. The cover 1100 may be a non-magnetic material. The cover 1100 may be formed of a metal material. The cover 1100 may be formed of a metal plate. The cover 1100 may be connected to a ground of the printed circuit board 11. By doing so, the cover 1100 may be grounded. The cover 1100 may shield electromagnetic interference (EMI). At this time, the cover 1100 may be referred to as an EMI shield.

The cover 1100 may include an upper panel 1110 and a side panel 1120. The cover 1100 may include: an upper plate 1110; and a side plate 1120 extending downward from the outer periphery or edge of the upper plate 1110. The lower end of the side plate 1120 of the cover 1100 may be disposed at a stepped portion 1434 of the base 1430. The inner surface of the side plate 1120 of the cover 1100 may be coupled to the base 1430 by an adhesive.

The upper plate 1110 of the cover 1100 may include holes 1111. The hole 1111 may be formed in the upper plate 1110 of the cover 1100. The aperture 1111 may expose the lens upwards. The hole 1111 may be formed in a size and shape corresponding to the lens. The size of the hole 1111 may be larger than the diameter of the lens module so that the lens module may be inserted and assembled through the hole 1111. Light introduced through the aperture 1111 may pass through the lens. At this time, the light passing through the lens may be converted into an electrical signal in the image sensor, and may be obtained as an image.

The first lens driving apparatus 1000 may include a first mover 1200. The first mover 1200 may be coupled to a lens. The first mover 1200 may be coupled to the second mover 1300 by an elastic member 1500. The first mover 1200 may be moved by interaction with the second mover 1300. At this time, the first mover 1200 may move integrally with the lens. On the other hand, the first mover 1200 may move during AF driving. At this time, the first mover 1200 may be referred to as an "AF mover". However, the first mover 1200 may even move during OIS driving.

The first mover 1200 may include a bobbin 1210. The coil former 1210 may be disposed in the housing 1310 or on the interior of the housing 1310. The coil former 1210 may be disposed in a bore 1311 of the housing 1310. The coil former 1210 may be movably coupled to the housing 1310. The bobbin 1210 is movable in the optical axis direction with respect to the housing 1310. The lens may be coupled to the bobbin 1210. The coil former 1210 and the lens may be coupled by screw coupling and/or adhesive. The first coil 1220 may be coupled to the bobbin 1210. The upper elastic member 1510 may be coupled to an upper portion or an upper surface of the bobbin 1210. The lower elastic member 1520 may be coupled to a lower portion or a lower surface of the bobbin 1210. The bobbin 1210 may be coupled to the elastic member 1500 by thermal welding and/or adhesive. The adhesive for coupling the bobbin 1210 with the lens and for coupling the bobbin 1210 with the elastic member 1500 may be epoxy resin cured by at least one of Ultraviolet (UV), heat, and laser.

The coil former 1210 may include an aperture 1211. The hole 1211 may penetrate the bobbin 1210 in the optical axis direction. The lens module may be received in the aperture 1211. For example, threads corresponding to threads formed on the outer circumferential surface of the lens module may be formed on the inner circumferential surface of the forming hole 1211 of the bobbin 1210.

The coil former 1210 may include a protrusion 1212. The protrusions 1212 may be provided on side surfaces of the bobbin 1210. The protrusion 1212 may protrude from a side surface of the bobbin 1210 and may be integrally formed. The first coil 1220 may be wound around the protrusion 1212. Alternatively, the first coil 1220 that has been wound on the protrusion 1212 may be coupled. The protrusion 1212 may include a first protrusion 1212 and a second protrusion. The bobbin 1210 may include: a first protrusion 1212 provided on a first side surface of the bobbin 1210; and a second protrusion provided on a second side surface at an opposite side of the first side surface of the bobbin 1210. Each of the first protrusion 1212 and the second protrusion may be divided into two protrusions. Alternatively, each of the first protrusion 1212 and the second protrusion may be formed as a straight line that is not separated. The first protrusion 1212 may be wound with the first coil unit 1221. The second protrusion may be wound with the second coil unit 1222.

The first mover 1200 may include a first coil 1220. The first coil 1220 may be disposed on the bobbin 1210. The first coil 1220 may be disposed between the bobbin 1210 and the case 1310. The first coil 1220 may be disposed on an outer circumferential surface of the bobbin 1210. The first coil 1220 may be directly wound on the bobbin 1210. The first coil 1220 may face the magnet 1320. The first coil 1220 may electromagnetically interact with the magnet 1320. In this case, when a current is supplied to the first coil 1220 and an electromagnetic field is formed around the first coil 1220, electromagnetic interaction between the first coil 1220 and the magnet 1320 causes the first coil 1220 to move with respect to the magnet 1320. The first coil 1220 may be an integrally formed single coil.

The first coil 1220 may include two ends for supplying power. At this time, one end of the first coil 1220 is coupled to the first upper elastic unit 1510a, and the other end of the first coil 1220 may be coupled to the second upper elastic unit 1510b. That is, the first coil 1220 may be electrically connected to the upper elastic member 1510. In detail, power may be sequentially supplied to the first coil 1220 via the printed circuit board 11, the substrate 1410, the support member 1600, and the upper elastic member 1510. As a modified embodiment, the first coil 1220 may be electrically connected to the lower elastic member 1520.

The first coil 1220 may include a first coil unit 1221 and a second coil unit 1222 spaced apart from each other. The first coil 1220 may include a first coil unit 1221 facing the second magnet unit 1322 and a second coil unit 1222 facing the third magnet unit 1323. The first coil unit 1221 and the second coil unit 1222 may be disposed on opposite sides of the outer side surface of the bobbin 1210 to be spaced apart from each other. The first coil unit 1221 may be wound around the first protrusion 1212 to surround the upper and lower surfaces of the first protrusion 1212. The first coil unit 1221 may be placed in the first protrusion 1212, and the second coil unit 1222 may be placed in the second protrusion. The second coil unit 1222 may be wound on the second protrusion to surround upper and lower surfaces of the second protrusion. The first coil unit 1221 and the second coil unit 1222 may be referred to as "eyeglass coils". The first coil unit 1221 and the second coil unit 1222 may have a shape of at least one of an elliptical shape, a track shape, and a closed curve shape.

The first coil 1220 may not face the first magnet unit 1321 of the magnet 1320. In more detail, the first coil 1220 faces only the second and third magnet units 1322 and 1323 of the magnet 1320, but may not face the first magnet unit 1321. The first coil unit 1221 is disposed to face the second magnet unit 1322, and the second coil unit 1222 is disposed to face the third magnet unit 1323, however, any substructure of the first coil 1220 facing the first magnet unit 1321 may not be disposed.

The first coil 1220 may include a connection part (not shown) for electrically connecting the first coil unit 1221 with the second coil unit 1222. The connection portion of the first coil 1220 may be a connection coil (not shown). One end of the first coil unit 1221 and one end of the second coil unit 1222 may be connected to the connection portion of the first coil 1220. The connection portion of the first coil 1220 may be disposed between the first coil unit 1221 and the second coil unit 1222. The connection portion of the first coil 1220 may face the first magnet unit 1321. In other embodiments, the connection portion of the first coil 1220 may face a dummy member 1330. The connection portion of the first coil 1220 may be disposed between the first magnet unit 1321 and the bobbin 1210 or between the dummy member 1330 and the bobbin 1210.

The distance between the first coil unit 1221 and the second magnet unit 1322 and/or the distance between the second coil unit 1222 and the third magnet unit 1323 (see L1 in fig. 11) may be 60 μm to 150 μm. The distance between the bobbin 1210 and the first magnet unit 1321 (see L2 in fig. 11) may be 60 μm to 200 μm.

The first lens driving apparatus 1000 may include a second mover 1300. The second mover 1300 may be movably coupled to the stator 1400 via a support member 1600. The second mover 1300 may support the first mover 1200 through the elastic member 1500. The second mover 1300 may move the first mover 1200 or may move with the first mover 1200. The second mover 1300 may be moved by interaction with the stator 1400. The second mover 1300 may be moved during OIS driving. At this time, the second mover 1300 may be referred to as an "OIS mover". The second mover 1300 may be integrally moved with the first mover 1200 during OIS driving.

The second mover 1300 may include a housing 1310. The housing 1310 may be provided outside of the bobbin 1210. The housing 1310 may house at least a portion of the coil former 1210 inside or on an inner side thereof. The housing 1310 may be provided in the interior (inner side) of the cover 1100. A housing 1310 may be provided between the cover 1100 and the bobbin 1210. The housing 1310 may be formed of a material different from that of the cover 1100. The housing 1310 may be formed of an insulating material. The housing 1310 may be formed of an injection molded material. The outer side surface of the housing 1310 may be spaced apart from the inner surface of the side plate 1120 of the cover 1100. The housing 1310 may be moved through a space between the housing 1310 and the cover 1100 for OIS driving. A magnet 1320 may be disposed in the housing 1310. The housing 1310 and the magnet 1320 may be coupled together by an adhesive. The upper elastic member 1510 may be coupled to an upper portion or an upper surface of the housing 1310. The lower elastic member 1520 may be coupled to an upper or lower surface of the case 1310. The case 1310 may be coupled to the elastic member 1500 by thermal welding and/or an adhesive. The adhesive for coupling the case 1310 with the magnet 1320 and coupling the case 1310 with the elastic member 1500 may be an epoxy resin cured by at least one of Ultraviolet (UV), heat, and laser.

The housing 1310 may include four sides and four corners disposed between the four sides. The housing 1310 may include: a first side portion provided on the first surface side of the first lens driving apparatus 1000; a second side portion disposed on an opposite side of the first side portion; and third and fourth sides disposed on opposite sides from each other between the first and second sides. The first side of the housing 1310 may be disposed on the first surface side of the first lens driving apparatus 1000. The housing 1310 may include four sides, and the four sides may be optionally referred to as "first side", "second side", "third side", and "fourth side" to distinguish from one another. For example, unlike the foregoing description, the second side portion may be provided on the first surface side of the first lens driving apparatus 1000.

Housing 1310 may include a hole 1311. A hole 1311 may be formed in the housing 1310. The hole 1311 may be formed to penetrate the housing 1310 in the optical axis direction. The coil former 1210 may be disposed in the hole 1311. The hole 1311 may be formed in a shape at least partially corresponding to the bobbin 1210. An inner circumferential surface of the housing 1310, in which the hole 1311 is formed, may be spaced apart from an outer circumferential surface of the bobbin 1210. However, the housing 1310 and the bobbin 1210 may at least partially overlap each other in the optical axis direction to limit a moving stroke distance of the bobbin 1210 in the optical axis direction.

The housing 1310 may include a magnet coupling 1312. The magnet 1320 may be coupled to the magnet coupling 1312. The magnet coupling portion 1312 may include a receiving groove formed by recessing a portion of an inner circumferential surface and/or a lower surface of the case 1310. The magnet coupling portion 1312 may be formed on each of four sides of the case 1310. As a modified embodiment, a magnet coupling portion 1312 may be formed at each of four corners of the case 1310.

The housing 1310 may include an upper plate 1313. The housing 1310 may include an upper plate 1313 disposed above an upper surface of the magnet 1320. The upper plate 1313 may support an upper surface of the magnet 1320. An adhesive may be disposed between the upper plate 1313 and the magnet 1320. The upper plate 1313 may be disposed at an upper side of a portion of an upper surface of the magnet 1320. A stopper 1314 protruding toward the upper plate 1110 of the cover 1100 may be provided on the upper plate 1313. The upper plate 1313 may be integrally formed with the housing 1310. The stopper 1314 may be integrally formed with the upper plate 1313. The upper plate 1313 may be disposed on the second, third, and fourth sides of the case 1310, respectively. That is, three upper plates 1313 may be provided in the housing 1310. The upper plate 1313 may not be disposed on the first side portion in which the dummy member 1330 is disposed. The upper plate 1313 of the housing 1310 may be disposed on each of the second, third, and fourth sides of the housing 1310, but not on the first side of the housing 1310. That is, the upper plate 1313 of the case 1310 may not be disposed at the upper portion of the dummy member 1330 disposed on the first side of the case 1310. That is, the housing 1310 may be asymmetric with respect to a central axis of a lens coupled to the bobbin 1210.

The housing 1310 may include a stop 1314. A stopper 1314 may be provided on the upper plate 1313. The stopper 1314 may be integrally formed with the upper plate 1313. Two stoppers 1314 may be provided for each upper plate 1313. That is, a total of six stoppers 1314 may be provided in the housing 1310. Two stoppers 1314 may be provided at both ends of the upper plate 1313, respectively. An upper surface of the stopper 1314 may form an upper end of the housing 1310. The stopper 1314 may overlap the upper plate 1110 of the cover 1100 in the optical axis direction. That is, as the housing 1310 continues to move upward, the upper surface of the stopper 1314 contacts the upper plate 1110 of the cover 1100. Thus, the stopper 1314 may limit the upward moving distance of the housing 1310.

The second mover 1300 may include a magnet 1320. A magnet 1320 may be disposed in the housing 1310. The magnet 1320 may be secured to the housing 1310 by an adhesive. A magnet 1320 may be disposed between the bobbin 1210 and the housing 1310. The magnet 1320 may face the first coil 1220. The magnet 1320 may electromagnetically interact with the first coil 1220. The magnet 1320 may face the second coil 1422. The magnet 1320 may electromagnetically interact with the second coil 1422. The magnet 1320 may be commonly used for AF driving and OIS driving. Magnets 1320 may be disposed on sides of the housing 1310. At this time, the magnet 1320 may be a flat plate magnet having a flat plate shape. As a modified embodiment, the magnet 1320 may be provided at a corner of the housing 1310. At this time, the magnet 1320 may be a corner magnet (coupler magnet) having a hexahedral shape with an inner side surface wider than an outer side surface.

In this embodiment, the upper surface of the magnet 1320 may include a first portion overlapping the upper elastic member 1510 in the optical axis direction. A first portion of the upper surface of the magnet 1320 may not overlap with the housing 1310 in the optical axis direction. A first portion of the upper surface of the magnet 1320 may be exposed from the housing 1310 to face the upper elastic member 1510. A first portion of the upper surface of the magnet 1320 may be in contact with the upper elastic member 1510. The upper surface of the magnet 1320 may include a second portion overlapping the housing 1310 in the optical axis direction. An upper plate 1313 of the housing 1310 may be disposed over a second portion of the upper surface of the magnet 1320. A second portion of the upper surface of the magnet 1320 may be coupled with the upper plate 1313 of the housing 1310. A second portion of the upper surface of the magnet 1320 may not overlap the upper elastic member 1510 in the optical axis direction. The upper surface of the magnet 1320 may further include a third portion that does not overlap the housing 1310 and the upper elastic member 1510 in the optical axis direction. That is, the upper surface of the magnet 1320 may include: a first portion overlapping the upper elastic member 1510 in the optical axis direction; a second portion overlapping the upper plate 1313 of the housing 1310; and a third portion that does not overlap with both the upper elastic member 1510 and the upper plate 1313 of the housing 1310. However, the third portion may not be present.

In this embodiment, the upper surface of the magnet 1320 may be disposed on the same plane as the upper surface of the housing 1310 to which the upper elastic member 1510 is coupled. With this structure, a part of the housing 1310 may be omitted in this embodiment. That is, the structure can be described as: a portion of the housing 1310 is omitted and the upper elastic member 1510 is provided at a corresponding portion. A portion of the upper surface of the magnet 1320 may be in contact with the upper elastic member 1510. Further, another portion of the upper surface of the magnet 1320 may be in contact with the upper plate 1313 of the housing 1310.

The magnet 1320 may include a plurality of magnets spaced apart from each other. The magnet 1320 may include three magnets spaced apart from each other. The magnet 1320 may include a first magnet unit 1321, a second magnet unit 1322, and a third magnet unit 1323. The magnet 1320 includes: a first magnet unit 1321 disposed on a second side of the housing 1310; a second magnet unit 1322 disposed on a third side of the housing 1310; and a third magnet unit 1323 disposed on the fourth side. The first magnet unit 1321 may face the first coil unit 1422a of the second coil 1422. The second magnet unit 1322 may face the first coil unit 1221 of the first coil 1220 and may face the second coil unit 1422b of the second coil 1422. The third magnet unit 1323 may face the second coil unit 1222 of the first coil 1220 and may face the third coil unit 1422c of the second coil 1422. The second and third magnet units 1322 and 1323 may move the bobbin 1210 in the optical axis direction. The first, second, and third magnet units 1321, 1322, and 1323 may move the housing 1310 in a direction perpendicular to the optical axis direction.

The first magnet unit 1321 may be a 2-pole magnet. In this embodiment, the second and third magnet units 1322 and 1323 may be 4-pole magnets. The 2-pole magnet may be a 2-pole magnetized magnet and the 4-pole magnet may be a 4-pole magnetized magnet. Thus, in the present embodiment, magnetic interference between the magnet 1320 of the first lens driving apparatus 1000 and the magnet 2320 of the second lens driving apparatus 2000 can be reduced. In the comparative example, the second magnet unit 1322 and the third magnet unit 1323 are provided as 2-pole magnets. Fig. 13 is a diagram showing the magnetic field distribution of the comparative example. Fig. 14 is a diagram showing the magnetic field distribution of the present embodiment. Comparing fig. 14 and 13, it can be seen that magnetic interference between the magnet 1320 of the first lens driving apparatus 1000 and the magnet 2320 of the second lens driving apparatus 2000 is reduced or eliminated.

Each of the second and third magnet units 1322 and 1323 may include a first surface facing the first coil 1220. The first surface may include a neutral portion 1324 horizontally disposed in the center portion. Neutral 1324 may be a neutral region and may not include a polarity. The first surface may have upper and lower portions of different polarity relative to the neutral portion 1324. That is, the upper side of the neutral portion 1324 may have an S pole, and the lower side of the neutral portion 1324 may have an N pole. As a modified embodiment, the upper side of the neutral portion 1324 may have an N pole, and the lower side of the neutral portion 1324 may have an S pole. The vertical length (see L in fig. 10) of the neutral portion 1324 may be 0.1mm to 0.5mm.

Each of the first, second, and third magnet units 1321, 1322, and 1323 may include: a second surface facing the second coil 1422; and a third surface disposed on an opposite side of the second surface. The second surface may be an inner side that is a center side of the first lens driving apparatus 1000, and the third surface may be an outer side that is an opposite side of the inner side. The second surface and the third surface of each of the first magnet unit 1321, the first magnet unit 1322, and the third magnet unit 1323 may have different polarities. That is, the second surface may have an N-pole and the third surface may have an S-pole. As a modified embodiment, the second surface may have an S-pole and the third surface may have an N-pole.

The second mover 1300 may include a dummy member 1330. The dummy member 1330 may be disposed on a first side of the case 1310. The setting member 1330 may include a non-magnetic material. The dummy member 1330 may have a block corresponding to the first magnet unit 1321. The dummy member 1330 may be disposed at a position corresponding to the first magnet unit 1321 for weight balancing. Alternatively, the magnetic strength of the dummy member 1330 may be weaker than that of the first magnet unit 1321. The dummy member 1330 may be disposed at an opposite side of the first magnet unit 1321 to center the weight. The dummy member 1330 may be a non-magnetic material. The dummy member 1330 may be made of 95% or more tungsten. That is, the dummy member 1330 may be a tungsten alloy. For example, the specific gravity of the dummy member 1330 may be 18000 or more. The entire upper surface of the dummy member 1330 may be exposed from the case 1310. That is, the upper surface of the dummy member 1330 may not overlap with the housing 1310 or be supported by the non-housing 1310 in the optical axis direction. The upper plate 1313 of the case 1310 may not be disposed above the dummy member 1330. The second coil 1422 may not be disposed between the dummy member 1330 and the substrate 1410.

The dummy member 1330 may include a shape suitable for assembly with the housing 1310. The dummy member 1330 may include protrusions protruding toward both side directions. The dummy member 1330 may include a shape for avoiding interference with an adjacent operating part. The dummy member 1330 may include a groove formed at a portion where the upper surface intersects the inner surface. The length of the outer surface of the dummy member 1330 in the horizontal direction may be shorter than the length of the first magnet unit 1321 in the corresponding direction. The thickness of the dummy member 1330 may correspond to the thickness of the first magnet unit 1321. Alternatively, the thickness of the dummy member 1330 may be greater than or less than the thickness of the first magnet unit 1321. The shape of the dummy member 1330 may be different from the shape of the first magnet unit 1321. Alternatively, the shape of the dummy member 1330 may correspond to the shape of the first magnet unit 1321. The dummy member 1330 may be disposed at the same height as the first magnet unit 1321. Alternatively, the dummy member 1330 may be disposed higher or lower than the first magnet unit 1321. The upper end of the dummy member 1330 may be disposed at the same height as the upper end of the first magnet unit 1321. Alternatively, the upper end of the dummy member 1330 may be disposed higher or lower than the upper end of the first magnet unit 1321. The lower end of the dummy member 1330 may be disposed at a height corresponding to the lower end of the first magnet unit 1321. Alternatively, the lower end of the dummy member 1330 may be disposed higher or lower than the lower end of the first magnet unit 1321. As shown in fig. 3, a dummy member 1330 may be disposed between the magnet 1320 of the first lens driving apparatus 1000 and the magnet 2320 of the second lens driving apparatus 2000. The horizontal length of the dummy member 1330 may be the same as the horizontal length of the first magnet unit 1321, or may be shorter or longer than the horizontal length of the first magnet unit 1321. The vertical length of the dummy member 1330 may be the same as the horizontal length of the first magnet unit 1321, or may be shorter or longer than the horizontal length of the first magnet unit 1321.

The first lens driving apparatus 1000 may include a stator 1400. The stator 1400 may be disposed under the first mover 1200 and the second mover 1300. The stator 1400 may movably support the second mover 1300. The stator 1400 may move the second mover 1300. At this time, the first mover 1200 may move together with the second mover 1300.

The stator 1400 may include a base plate 1410. The substrate 1410 may include a second coil 1422 facing the magnet 1320. Alternatively, the substrate 1410 may include a circuit member 1420, the circuit member 1420 including a second coil 1422 facing the magnet 1320. The substrate 1410 may be disposed on the base 1430. The substrate 1410 may be disposed between the housing 1310 and the base 1430. The support member 1600 may be coupled to a substrate 1410. The substrate 1410 may supply power to the second coil 1422. The substrate 1410 may be coupled to a circuit member 1420. The substrate 1410 may be coupled to a second coil 1422. The substrate 1410 may be coupled to a printed circuit board 11 disposed below the base 1430. The substrate 1410 may include a Flexible Printed Circuit Board (FPCB). The substrate 1410 may be bent at a specific portion.

The substrate 1410 may include a body portion 1411. The substrate 1410 may include a hole 1411a formed in the body portion 1411. The substrate 1410 may include holes 1411a corresponding to lenses coupled to the bobbin 1210. The hole 1411a may be eccentrically disposed toward the first surface of the first lens driving apparatus 1000. In this embodiment, by such an eccentric arrangement of the holes 1411a, one or more spaces for increasing the number of turns of the first coil unit 1422a may be ensured in the base 1430, the substrate 1410, and the circuit member 1420. The hole 1411a of the substrate 1410 is formed closer to one side surface of the substrate 1410. At this time, one side surface of the substrate 1410 may be adjacent to the dummy member 1330. The shortest distance from the other side surface located at the opposite side of the one side surface of the substrate 1410 to the hole 1411a may be greater than the shortest distance from the one side surface to the hole 1411a.

The substrate 1410 may include: a hole 1411a; an inner peripheral surface formed by the hole 1411a; a first side surface disposed on a first side of the housing 1310; and a second side surface disposed on a second side of the housing 1310. The distance between the inner circumferential surface of the substrate 1410 and the second side surface of the substrate 1410 (see W4 in fig. 7) may be greater than the distance between the inner circumferential surface of the substrate 1410 and the first side surface of the substrate 1410 (see W3 in fig. 7). The first coil unit 1422a may be disposed between the inner circumferential surface of the substrate 1410 and the second side surface of the substrate 1410. The second coil 1422 may not be disposed between the inner circumferential surface of the substrate 1410 and the first side surface of the substrate 1410.

The substrate 1410 may include: a first side surface provided on the first surface side of the first lens driving apparatus 1000; a second side surface disposed on an opposite side of the first side surface; and third and fourth side surfaces disposed between the first and second side surfaces and disposed on opposite sides of each other. At this time, the distance between the third side surface and the fourth side surface (see W1 in fig. 7) may be longer than the distance between the first side surface and the second side surface (see W2 in fig. 7). With the above-described structure of the present embodiment, a certain space can be ensured so that the length L1 of the first coil unit 1422a in the longitudinal direction can be formed longer than the length L2 of each of the second coil unit 1422b and the third coil unit 1422c in the longitudinal direction.

The substrate 1410 may include a terminal portion 1412. The terminal portion 1412 may extend from the body portion 1411 of the substrate 1410. The terminal portion 1412 may be formed by bending a portion of the substrate 1410 downward. At least a portion of the terminal portion 1412 may be exposed to the outside. The terminal portion 1412 may be coupled to the printed circuit board 11 disposed under the base portion 1430 by soldering. The terminal portion 1412 may be disposed in a terminal accommodating portion 1433 of the base 1430.

The substrate 1410 may include a circuit member 1420. The stator 1400 may include a circuit member 1420. The circuit member 1420 may be disposed on the base 1430. The circuit member 1420 may be disposed on the substrate 1410. The circuit member 1420 may be disposed between the magnet 1320 and the base 1430. Here, although the circuit member 1420 is described as a separate component from the substrate 1410, the circuit member 1420 may be understood as a component included in the substrate 1410.

The circuit member 1420 may include a substrate portion 1421. The substrate portion 1421 may be a circuit board. The substrate portion 1421 may be an FPCB. The second coil 1422 may be integrally formed with a fine pattern coil (FP coil) on the substrate portion 1421. A hole through which the support member 1600 passes may be formed in the base plate portion 1421. A hole 1421a may be formed in the substrate portion 1421. The hole 1421a of the substrate portion 1421 may be formed to correspond to the hole 1411a of the substrate 1410.

The circuit member 1420 may include a second coil 1422. The second coil 1422 may face the magnet 1320. The second coil 1422 may electromagnetically interact with the magnet 1320. In this case, when a current is supplied to the second coil 1422 and an electromagnetic field is formed around the second coil 1422, electromagnetic coupling between the second coil 1422 and the magnet 1320 causes the second coil 1422 to move relative to the magnet 1320. The second coil 1422 may move the housing 1310 and the bobbin 1210 relative to the base 1430 in a direction perpendicular to the optical axis by electromagnetic interaction with the magnet 1320. The second coil 1422 may be a fine pattern coil (FP coil) formed integrally with the substrate 1421.

The second coil 1422 may include: a first coil unit 1422a facing the first magnet unit 1321; a second coil unit 1422b facing the second magnet unit 1322; and a third coil unit 1422c facing the third magnet unit 1323. The number of turns of the coil wound in the first coil unit 1422a may be greater than the number of turns of the coil wound in the second coil unit 1422 b. The number of turns of the coil wound in the third coil unit 1422c may correspond to the number of turns of the coil wound in the second coil unit 1422 b. In the present embodiment, the movement in the X-axis direction during OIS driving may be performed by the first coil unit 1422a, and the movement in the Y-axis direction may be performed by the second coil unit 1422b and the third coil unit 1422c. Therefore, in this embodiment, the number of turns of the first coil unit 1422a is made higher than the number of turns of the second coil unit 1422b and the third coil unit 1422c to complement the insufficient driving force in the X-axis direction. For example, the ratio of the number of turns of the first coil unit 1422a to the number of turns of the second coil unit 1422b (or the third coil unit 1422 c) may be 1.5:2.0 to 1:1. this is to compensate for the fact that the second coil 1422 is not disposed in a position facing the first coil unit 1422 a. That is, due to space limitations, the ratio of the number of turns of the first coil unit 1422a to the number of turns of the second coil unit 1422b (or the third coil unit 1422 c) may be set to 1.5:2.0. the length of the first coil unit 1422a in the longitudinal direction (see L1 in fig. 7) is longer than the lengths of the second and third coil units 1422b and 1422c in the longitudinal direction (see L2 in fig. 7). The length of the first coil unit 1422a in the width direction (see L3 in fig. 7) is longer than the length of each of the second and third coil units 1422b and 1422c in the width direction (see L4 in fig. 7).

In the present embodiment, a central axis of a lens (see C1 in fig. 9) coupled to the bobbin 1210 may be eccentrically disposed from a central axis of the first lens driving device 1000 toward the dummy member 1330. The central axis C1 of the bobbin 1210 may be eccentrically disposed from the central axis C2 of the case 1310 toward the dummy member 1330. At this time, the central axis C1 of the lens may be coincident with the central axis C1 of the bobbin 1210 or the central axis of the hole 1311 of the housing 1310. The central axis C2 of the first lens driving apparatus 1000 and the central axis C2 of the housing 1310 may coincide with each other. At this time, the central axis C2 of the housing 1310 may be a central axis as viewed with reference to the outer circumference of the housing 1310, instead of the central axis of the hole 1311 of the housing 1310. Further, the hole 1411a may be provided eccentric to the first surface side of the first lens driving apparatus 1000. With the above-described structure of the present embodiment, a certain space can be ensured so that the length L1 of the first coil unit 1422a in the longitudinal direction can be formed longer than the length L2 of each of the second coil unit 1422b and the third coil unit 1422c in the longitudinal direction.

The stator 1400 may include a base 1430. The base 1430 may be disposed on an underside of the housing 1310. The base 1430 may be disposed on an underside of the substrate 1410. The substrate 1410 may be disposed on an upper surface of the base 1430. The base 1430 may be coupled to the cover 1100. The base 1430 may be disposed on an upper side of the printed circuit board 11.

The base 1430 may include a hole 1431. A hole 1431 may be formed in the base 1430. The hole 1431 may be formed to penetrate the base 1430 in the optical axis direction. Light passing through the lens module through the aperture 1431 may be incident on the image sensor. That is, light passing through the lens module may be incident on the image sensor through the hole 1421a of the circuit member 1420, the hole 1411a of the substrate 1410, and the hole 1431 of the base 1430.

The base 1430 may include a sensor coupling 1432. A second sensor (not shown) may be disposed in the sensor coupling 1432. The sensor coupling 1432 may house at least a portion of a second sensor. The sensor coupling 1432 may include a groove formed by recessing an upper surface of the base 1430. The sensor coupling 1432 may include two grooves. At this time, a second sensor is provided in each of the two grooves so that the movement of the magnet 1320 in the X-axis direction and the Y-axis direction can be sensed.

The base 1430 may include a terminal receiving portion 1433. The terminal portion 1412 of the substrate 1410 may be disposed in the terminal accommodating portion 1433. The terminal accommodating portion 1433 may include a groove formed by recessing a portion of a side surface of the base 1430 inward. The terminal accommodating portion 1433 may have a width corresponding to the width of the terminal portion 1412 of the substrate 1410. The terminal accommodating portion 1433 may be formed to have a length corresponding to the length of the terminal portion 1412 of the substrate 1410.

The base 1430 may include a step 1434. The stepped portion 1434 may be formed on a side surface of the base 1430. The stepped portion 1434 may be formed to surround an outer circumferential surface of the base seat 430. The step 1434 may be formed by recessing an upper portion of a side surface of the base 1430. Alternatively, the step 1434 may be formed by protruding a lower portion of the side surface of the base 1430. The lower end of the side plate 1120 of the cover 1100 may be disposed on the stepped portion 1434.

The first lens driving apparatus 1000 may include an elastic member 1500. The elastic member 1500 may be coupled to the bobbin 1210 and the case 1310. The elastic member 1500 may elastically support the bobbin 1210. The elastic member 1500 may be at least partially elastic. The elastic member 1500 may movably support the bobbin 1210. The elastic member 1500 may support movement of the bobbin 1210 during AF driving. At this time, the elastic member 1500 may be referred to as an "AF support member".

The elastic member 1500 may include an upper elastic member 1510. The upper elastic member 1510 may be disposed at an upper side of the bobbin 1210. The upper elastic member 1510 may be coupled to the bobbin 1210 and the case 1310. The upper elastic member 1510 may be coupled to an upper surface of the bobbin 1210. The upper elastic member 1510 may be coupled to an upper surface of the housing 1310. The upper elastic member 1510 may be coupled with the support member 1600. The upper elastic member 1510 may be formed of a plate spring.

The upper elastic member 1510 may serve as a wire for supplying electricity to the first coil 1220. The upper elastic member 1510 may include a first upper elastic unit 1510a and a second upper elastic unit 1510b spaced apart from each other. The first upper elastic unit 1510a may be coupled to one end of the first coil 1220 and the second upper elastic unit 1510b may be coupled to the other end of the first coil 1220. The upper elastic member 1510 and the first coil 1220 may be coupled by welding.

The upper elastic member 1510 may include an outer side 1511. The outer side 1511 may be coupled to the housing 1310. The outer side 1511 may be coupled to an upper surface of the housing 1310. The outer side 1511 may include a hole or groove coupled to a protrusion of the housing 1310. The outer side 1511 may be secured to the housing 1310 by an adhesive.

The upper elastic member 1510 may include an inner side 1512. The inner portion 1512 may be coupled to the coil former 1210. The inner portion 1512 may be coupled to an upper surface of the coil former 1210. The inner portion 1512 may include a hole or groove that couples to a protrusion of the coil former 1210. The inner portion 1512 may be secured to the coil former 1210 by an adhesive.

The upper elastic member 1510 may include a connection portion 1513. The connection portion 1513 may connect the outer portion 1511 with the inner portion 1512. The connection portion 1513 may elastically connect the outer portion 1511 and the inner portion 1512. The connection portion 1513 may have elasticity. At this time, the connection portion 1513 may be referred to as an "elastic portion". The connection portion 1513 may be formed by bending twice or more.

The upper elastic member 1510 may include a coupling portion 1514. The coupling portion 1514 may be coupled with the support member 1600. The coupling portion 1514 may be coupled to the support member 1600 by welding. Coupling 1514 may include a hole or recess that couples with support member 1600. The coupling portion 1514 may extend from the outer side portion 1511. The coupling portion 1514 may include a bent portion formed by being bent.

The elastic member 1500 may include a lower elastic member 1520. The lower elastic member 1520 may be disposed on the lower side of the bobbin 1210. The lower elastic member 1520 may be coupled to the bobbin 1210 and the case 1310. The lower elastic member 1520 may be coupled to a lower surface of the bobbin 1210. The lower elastic member 1520 may be coupled to a lower surface of the case 1310. The lower elastic member 1520 may be formed of a plate spring. The lower elastic member 1520 may be formed as one body.

The lower elastic member 1520 may include an outer side 1521. The outer portion 1521 may be coupled to the housing 1310. The outer side 1521 may be coupled to a lower surface of the housing 1310. The outer side 1521 may include a hole or groove coupled to a protrusion of the housing 1310. The outer side 1521 may be secured to the housing 1310 by an adhesive.

The lower elastic member 1520 may include an inner side 1522. The inner portion 1522 may be coupled to the bobbin 1210. The inner portion 1522 may be coupled to a lower surface of the bobbin 1210. The inner portion 1522 may include a hole or recess coupled to a protrusion of the bobbin 1210. The inner portion 1522 may be secured to the coil former 1210 by an adhesive.

The lower elastic member 1520 may include a connection portion 1523. The connection portion 1523 may connect the outer portion 1521 with the inner portion 1522. The connection portion 1523 may elastically connect the outer portion 1521 and the inner portion 1522. The connection portion 1523 may have elasticity. At this time, the connection portion 1523 may be referred to as an "elastic portion". The connection portion 1523 may be formed by bending twice or more.

The first lens driving apparatus 1000 may include a support member 1600. The support member 1600 may be a suspension wire. The support member 1600 may movably support the housing 1310. The support member 1600 may elastically support the housing 1310. The support member 1600 may be at least partially resilient. The support member 1600 may support movement of the housing 1310 and the coil former 1210 during OIS driving. At this time, the support member 1600 may be referred to as an "OIS support member". The support member 1600 may include a plurality of wires. The support member 1600 may include four wires spaced apart from one another. As a modified embodiment, the support member 1600 may be formed of a plate spring. The support member 1600 may be coupled to the upper elastic member 1510 and the base plate 1410. The support member 1600 may be coupled to the upper elastic member 1510 and the circuit member 1420 of the substrate 1410. The support member 1600 may be welded to the lower surface of the substrate 1410 through the hole of the substrate 1410. Alternatively, the support member 1600 may be welded to the lower surface of the circuit member 1420 through the hole of the circuit member 1420.

A damper (not shown) of the first lens driving apparatus 1000 may be provided on the support member 1600. The damper may be disposed on the support member 1600 and in the housing 1310. The damper may be provided on the elastic member 1500. A damper may be provided on the elastic member 1500 and/or the support member 1600 to prevent a resonance phenomenon from occurring in the elastic member 1500 and/or the support member 1600.

The first lens driving apparatus 1000 may include a first sensor (not shown). The first sensor may be a sensor for AF feedback. The first sensor may be disposed on the bobbin 1210. Alternatively, the first sensor may be disposed in the housing 1310. The first sensor may sense movement of the first mover 1200. The first sensor may comprise a hall sensor. At this time, the hall sensor may sense the movement of the bobbin 1210 and the lens by sensing the magnetic force of the magnet 1320 or a separately provided magnet. The sensed value sensed by the first sensor may be used for AF feedback control.

The first lens driving apparatus 1000 may include a second sensor. The second sensor may be a sensor for OIS feedback. The second sensor may be disposed between the base 1430 and the substrate 1410. The second sensor may sense movement of the second mover 1300. The second sensor may comprise a hall sensor. At this time, the hall sensor senses the magnetic force of the magnet 1320 and can detect the movement of the housing 1310 and the magnet 1320. The sensed value sensed by the second sensor may be used for OIS feedback control.

Hereinafter, a configuration of the second lens driving apparatus will be described with reference to the drawings.

The second lens driving device 2000 may be a Voice Coil Motor (VCM).

The second lens driving apparatus 2000 may include a cover 2100. The cover 2100 may house the housing 2310 inside. Cover 2100 may be coupled to base 2430.

Second lens driving apparatus 2000 may include first mover 2200. First mover 2200 may be moved during AF driving.

First mover 2200 may include a bobbin 2210. The bobbin 2210 may be disposed on an inner side of the housing 2310. The bobbin 2210 may be movably coupled to the housing 2310 by an elastic member 1500.

First mover 2200 may include first coil 2220. The first coil 2220 may be disposed on the bobbin 2210. The first coil 2220 may face the magnet 2320. First mover 2200 may perform AF driving by electromagnetic interaction between first coil 2220 and magnet 2320.

The second lens driving apparatus 2000 may include a second mover 2300. The second mover 2300 may be moved during OIS driving. First mover 2200 may move along with second mover 2300 during OIS driving.

The second mover 2300 may include a housing 2310. The housing 2310 may be disposed outside of the bobbin 2210. The housing 2310 may house the bobbin 2210 inside. The housing 2310 may be disposed between the bobbin 2210 and the cover 2100.

The second mover 2300 may include a magnet 2320. A magnet 2320 may be disposed in the housing 2310. The magnet 2320 may face the first coil 2220. The magnet 2320 may face the second coil 2422. The magnets 2320 may be disposed at four corners disposed between four sides of the housing 2310. The magnet 2320 may include four corner magnets disposed in each of the four corners.

The second lens driving apparatus 2000 may include a stator 2400. The stator 2400 may movably support the second mover 2300.

The stator 2400 may include a base plate 2410. The substrate 2410 may be disposed on the base 1430. The substrate 2410 may be disposed between the housing 1310 and the base 1430. The substrate 2410 may include a circuit member 2420, the circuit member 2420 including a second coil 2422 facing the magnet 2320. The substrate 2410 may be disposed on the base 2430.

The substrate 2410 may include a terminal portion 2412. The substrate 2410 may include a terminal portion 2412 formed by being partially bent. The terminal portion 2412 may be coupled to the printed circuit board 11 by soldering.

The substrate 2410 may include a circuit member 2420. The circuit member 2420 may include: a substrate portion; and a second coil 2422 formed of a fine pattern coil (FP coil) on the substrate section. The circuit member 2420 may include a second coil 2422. The second coil 2422 may face the magnet 2320. OIS drive may be performed by electromagnetic interaction between the second coil 2422 and the magnet 2320.

The stator 2400 may include a base 2430. The base 2430 may be disposed on an underside of the housing 2310. The base 2430 can support the substrate 2410.

The second lens driving apparatus 2000 may include an elastic member 2500. The elastic member 2500 may be coupled to the bobbin 2210 and the housing 2310. The elastic member 2500 may support the movement of the bobbin 2210 during AF driving. The elastic member 2500 may include an upper elastic member 2510. The upper elastic member 2510 may be provided on an upper side of the bobbin 2210 and may be coupled to the bobbin 2210 and the housing 2310. The elastic member 2500 may include a lower elastic member 2520. The lower elastic member 2520 may be disposed at a lower side of the bobbin 2210 and may be coupled to the bobbin 2210 and the housing 2310.

The second lens driving apparatus 2000 may include a supporting member 2600. The supporting member 2600 may movably support the second mover 2300. The support member 2600 may be coupled to the upper elastic member 2510 and the base plate 2410.

The present disclosure proposes a structure capable of eliminating mutual interference between magnets in a Voice Coil Motor (VCM) structure.

In this embodiment, the magnet 1320 of the first lens driving apparatus 1000 is constituted by three magnets, two magnets may be 4-pole magnets, and the remaining one magnet may be 2-pole magnets. Two first coils 1220 are connected in series facing the 4-pole magnets to provide a driving force required for an AF operation, and a second coil 1422 is provided at a lower end of each magnet so that OIS driving forces in X-axis and Y-axis directions can be provided. To center the weight, dummy blocks are provided on opposite sides of the magnetized 2-pole magnet, thereby preventing oscillations due to weight eccentricity during OIS operation.

According to the mechanical configuration of the present embodiment, the first coil 1220 is directly wound on two facing side surfaces of the four side surfaces of the bobbin 1210, and three magnets and a dummy member may be assembled into the case instead of four magnets. In the Y direction, a driving force is generated in the classification section of two magnetized 4-pole magnets and a pair of second coils 1422, but in the X direction, a driving force is generated in the classification section of only one magnetized 2-pole magnet and one second coil 1422. Therefore, the driving force in the X direction is inevitably small. To solve this problem, in the present embodiment, the central axis C1 of the lens is offset from the central axis C2 of the product in the direction of the dummy member 1330, and the number of turns of the coil 1422 is increased by using the spare space on the base 1430 side, thereby increasing the driving force in the X direction.

As in the comparative example, when a 2-pole magnet is used alone, the density of the magnetic field distribution of the magnet to the adjacent magnet increases, so that attractive force or repulsive force between adjacent VCMs may occur, which may lead to difficulty in controlling OIS. The magnetic field distribution according to the comparative example is shown in fig. 13.

In this embodiment, by applying magnetized 4-pole magnets, the magnetic field interference between the magnets of the two lens driving devices can be reduced. This is shown in fig. 14. Meanwhile, according to the present embodiment, when the attractive force or repulsive force between adjacent VCMs due to magnetic field disturbance is designed to be a negligible level, OIS control becomes possible because the influence of magnetic field disturbance can be ignored.

In this embodiment, a portion of the housing 1310 that has been in contact with the top surface of the magnet 1320 and has a minimum injection thickness is removed so that the assembly surface of the upper elastic member 1510 and the upper surface of the magnet 1320 may be configured to coincide with each other. In this embodiment, a space flush with the assembly surface of the upper elastic member 1510 but not spanned by the upper elastic member 1510 is filled with an injection molding material so that the upper plate 1313 of the housing 1310 may be configured with an outer peripheral portion where the stopper 1314 is located. As shown in fig. 11 of the present embodiment, when viewed from above (as seen in a top view), the magnet 1320 may be mechanically restrained by the upper plate 1313 of the housing 1310 connected to the stopper 1314 of the housing 1310, the upper plate 1313 of the housing 1310 exposing a portion of the upper surface of the magnet 1320 while maintaining a gap with respect to the cover 1100. That is, the mechanical restraint effect of the magnet 1320 and the effect of assembling the upper surface of the magnet 1320 upward can be ensured at the same time by the present embodiment.

In the above, all the components that have been described as constituting the embodiment of the present invention may be operated in combination or combined into one, but the present invention is not necessarily limited to all the components of the embodiment. That is, the present invention may include and be operable with one or more of all of the components of the embodiment. In addition, the term "comprising" as described above means that the corresponding elements may be embedded unless stated to the contrary, and thus it may be interpreted as including other components in addition to those corresponding components. In addition, the term "provided" as described above should be interpreted to include a case in which components are manufactured as separate members and provided, and even a case in which components are integrally manufactured and provided.

The above description is described as a technical idea of the present invention by way of example only, and those skilled in the art can make various modifications, additions and substitutions without departing from the essential characteristics of the present invention. Accordingly, the disclosed embodiments of the invention are intended to be illustrative, not limiting, of the technical concept of the invention, and the technical scope of the invention is not limited by such embodiments. The scope of the invention is to be construed in accordance with the appended claims and all such spirit as fall within the true scope of the invention.

In addition, the present technology may be configured as follows.

(1) A lens driving apparatus comprising:

a housing;

a bobbin disposed in the housing;

a magnet and a dummy member provided on the housing;

a first coil disposed on the bobbin; and

a substrate including a second coil facing the magnet,

wherein, the casing includes: a first side portion and a second side portion facing each other; and third and fourth sides facing each other,

wherein the magnet comprises: a first magnet unit disposed on the first side portion; a second magnet unit disposed on the third side portion; and a third magnet unit disposed on the fourth side portion, and

wherein the dummy member is disposed on the second side portion.

(2) A lens driving apparatus comprising:

a housing;

a bobbin disposed in the housing;

a magnet disposed on the housing;

a first coil disposed on the bobbin; and

a substrate including a second coil facing the magnet,

wherein the first magnet unit is a 2-pole magnet, and the second and third magnet units are 4-pole magnets.

(3) The lens driving apparatus according to (2), wherein the first coil includes: a first coil unit facing the second magnet unit; and a second coil unit facing the third magnet unit.

(4) The lens driving apparatus according to (3), wherein the first coil includes a connecting portion connecting the first coil unit and the second coil unit, and wherein,

the connection portion of the first coil is disposed between the first magnet unit and the bobbin or between the dummy member and the bobbin.

(5) The lens driving apparatus according to (2), wherein the first coil includes: a first coil unit facing the second magnet unit in a horizontal direction; and a second coil unit facing the third magnet unit in the horizontal direction, and wherein,

The second coil includes: a third coil unit facing the first magnet unit in a vertical direction; a fourth coil unit facing the second magnet unit in the vertical direction; and a fifth coil unit facing the third magnet unit in the vertical direction.

(6) The lens driving apparatus according to any one of (1) to (3) and (5), wherein the substrate includes a hole, and wherein,

the hole of the substrate is formed closer to one side surface of the substrate adjacent to the dummy member.

(7) The lens driving device according to any one of (1) to (3) and (5), wherein the second magnet unit and the third magnet unit move the bobbin in the optical axis direction, and

wherein the first magnet unit, the second magnet unit, and the third magnet unit move the housing in a direction perpendicular to the optical axis direction.

(8) The lens driving apparatus according to any one of (1) to (3) and (5), wherein each of the second magnet unit and the third magnet unit includes a first surface facing the first coil, and

wherein the first surface has two polarities.

(9) The lens driving apparatus according to any one of (1) to (3) and (5), wherein each of the first to third magnet units includes a second surface facing the second coil, and wherein,

the second surface has two polarities.

(10) An image pickup apparatus module comprising:

the first lens driving device according to any one of (1) to (3) and (5); and

a second lens driving device adjacent to the first lens driving device,

wherein the second lens driving device is disposed adjacent to the fourth side of the housing of the first lens driving device,

wherein the second lens driving device includes:

a housing;

a bobbin disposed in the housing of the second lens driving device;

a third coil provided on an outer peripheral surface of the bobbin of the second lens driving device;

a magnet disposed in the housing of the second lens driving device, the magnet facing the third coil; and

a fourth coil facing the magnet of the second lens driving device, wherein the magnet of the second lens driving device includes four magnet units disposed at corners of the housing of the second lens driving device.

Claims

1. A lens driving apparatus comprising:

a housing;

a bobbin disposed in the housing;

a magnet disposed on the housing;

a first coil disposed on the bobbin; and

a substrate including a second coil provided at a position corresponding to the magnet,

wherein, the casing includes: a first side and a second side opposite to each other; and third and fourth sides opposite each other,

wherein the magnet comprises: a first magnet unit disposed on the first side portion; a second magnet unit disposed on the third side portion; and a third magnet unit disposed on the fourth side portion,

wherein the first magnet unit is a 2-pole magnet,

wherein each of the second magnet unit and the third magnet unit is a 4-pole magnet,

wherein the first coil includes: a first coil part disposed between the bobbin and the second magnet unit; and a second coil part provided between the bobbin and the third magnet unit, and

wherein the first coil is not disposed between the bobbin and the first magnet unit.

2. The lens driving apparatus according to claim 1, wherein the second coil comprises: a first coil unit disposed at a position corresponding to the first magnet unit; a second coil unit disposed at a position corresponding to the second magnet unit; and a third coil unit disposed at a position corresponding to the third magnet unit.

3. The lens driving apparatus according to claim 2, wherein the number of turns of the coil wound in the first coil unit is larger than the number of turns of the coil wound in the second coil unit.

4. A lens driving apparatus according to claim 3, wherein the number of turns of the coil wound in the third coil unit is the same as the number of turns of the coil wound in the second coil unit.

5. A lens driving apparatus according to claim 3, wherein the substrate comprises: a hole; an inner peripheral surface formed by the aperture; a first side surface provided at a position corresponding to the first side portion of the housing; and a second side surface provided at a position corresponding to the second side portion of the housing, and

wherein a distance between the inner peripheral surface of the substrate and the first side surface of the substrate is greater than a distance between the inner peripheral surface of the substrate and the second side surface of the substrate.

6. The lens driving apparatus according to claim 1, wherein each of the second magnet unit and the third magnet unit includes a first surface facing the first coil, and

wherein the first surface includes a neutral portion horizontally disposed in a central portion.

7. The lens driving apparatus according to claim 1, comprising: a dummy member provided on the second side of the case, and

wherein the shape of the dummy member is different from the shape of the first magnet unit.

8. The lens driving apparatus according to claim 7, wherein the first coil is not disposed between the bobbin and the dummy member.

9. The lens driving apparatus according to claim 8, wherein the second coil is not disposed between the dummy member and the substrate.

10. The lens driving apparatus according to claim 7, wherein the dummy member includes a non-magnetic material, or has a magnetic strength weaker than that of the first magnet unit.

11. The lens driving apparatus according to claim 7, wherein the first coil includes a connection portion connecting the first coil portion and the second coil portion, and

wherein the connection portion of the first coil is disposed between the first magnet unit and the bobbin or between the dummy member and the bobbin.

12. The lens driving apparatus according to claim 1, wherein the second magnet unit and the third magnet unit are configured to move the bobbin in an optical axis direction, and

Wherein the first magnet unit, the second magnet unit, and the third magnet unit are configured to move the housing in a direction perpendicular to the optical axis direction.

13. The lens driving apparatus according to claim 1, comprising:

an upper elastic member coupled to the bobbin and the housing; and

a support member coupled to the upper elastic member,

wherein the first coil part and the second coil part are electrically connected,

wherein the upper elastic member includes a first upper elastic unit and a second upper elastic unit spaced apart from each other, an

Wherein one side end portion of the first coil portion is coupled to the first upper elastic unit, and one side end portion of the second coil portion is coupled to the second upper elastic unit.

14. A lens driving apparatus comprising:

a housing;

a bobbin disposed in the housing;

a magnet disposed on the housing;

a first coil disposed on the bobbin; and

wherein the second magnet unit has a number of poles greater than that of the first magnet unit,

15. The lens driving apparatus according to claim 14, wherein the first magnet unit is a 2-pole magnet, and

wherein the second magnet unit is a 4-pole magnet.

16. The lens driving apparatus according to claim 14, wherein the second coil comprises: a first coil unit disposed at a position corresponding to the first magnet unit; a second coil unit disposed at a position corresponding to the second magnet unit; and a third coil unit provided at a position corresponding to the third magnet unit, and

Wherein the number of turns of the coil wound in the first coil unit is larger than the number of turns of the coil wound in the second coil unit.

17. An image pickup apparatus module comprising the lens driving apparatus according to any one of claims 1 to 16.

18. The camera module of claim 17, comprising: a second lens driving device adjacent to the lens driving device,

wherein the second lens driving device is disposed adjacent to a second side of the housing of the lens driving device,

wherein the second lens driving device includes:

a housing;

a bobbin disposed in a housing of the second lens driving device;

a third coil provided on an outer peripheral surface of a bobbin of the second lens driving device;

a magnet provided on a housing of the second lens driving device, and facing the third coil; and

wherein the magnet of the second lens driving apparatus includes four magnet units respectively disposed at four corners of a housing of the second lens driving apparatus.

19. The image pickup device module according to claim 18, wherein the second lens driving device includes a fourth coil provided at a position corresponding to the magnet of the second lens driving device.

20. An optical device, comprising:

a main body;

the image pickup device module according to claim 17 provided on the main body; and

a display provided on the main body, and outputting an image photographed by the photographing device module.

21. A lens driving apparatus comprising:

a base;

a housing disposed on the base;

a bobbin disposed in the housing;

a magnet disposed on the housing;

a first coil disposed on the bobbin; and

wherein the first magnet unit is a 2-pole magnet,

22. The lens driving apparatus according to claim 21, wherein the second coil comprises: a first coil unit disposed at a position corresponding to the first magnet unit; a second coil unit disposed at a position corresponding to the second magnet unit; and a third coil unit disposed at a position corresponding to the third magnet unit.

23. The lens driving apparatus according to claim 22, wherein the number of turns of the coil wound in the first coil unit is larger than the number of turns of the coil wound in the second coil unit.

24. The lens driving apparatus according to claim 23, wherein the number of turns of the coil wound in the third coil unit is the same as the number of turns of the coil wound in the second coil unit.

25. The lens driving apparatus according to claim 23, wherein the substrate comprises: a hole; an inner peripheral surface formed by the aperture; a first side surface provided at a position corresponding to the first side portion of the housing; and a second side surface provided at a position corresponding to the second side portion of the housing, and

26. The lens driving apparatus of claim 21, wherein each of the second and third magnet units comprises a first surface facing the first coil, and

27. The lens driving apparatus according to claim 21, comprising: a dummy member provided on the second side of the case, and

28. The lens driving apparatus according to claim 27, wherein the first coil is not disposed between the bobbin and the dummy member.

29. The lens driving apparatus according to claim 28, wherein the second coil is not disposed between the dummy member and the substrate.

30. The lens driving apparatus according to claim 27, wherein the dummy member includes a non-magnetic material, or has a magnetic strength weaker than that of the first magnet unit.

31. The lens driving apparatus according to claim 27, wherein the first coil includes a connection portion connecting the first coil portion and the second coil portion, and

32. The lens driving apparatus according to claim 21, wherein the second magnet unit and the third magnet unit are configured to move the bobbin in an optical axis direction, and

33. The lens driving apparatus according to claim 26, comprising:

an upper elastic member coupled to the bobbin and the housing; and

a support member coupled to the upper elastic member,

34. A lens driving apparatus comprising:

a base;

a housing disposed on the base;

a bobbin disposed in the housing;

a magnet disposed on the housing;

a first coil disposed on the bobbin; and

35. The lens driving apparatus according to claim 34, wherein the first magnet unit is a 2-pole magnet, and

Wherein the second magnet unit is a 4-pole magnet.

36. The lens driving apparatus according to claim 34, wherein the second coil comprises: a first coil unit disposed at a position corresponding to the first magnet unit; a second coil unit disposed at a position corresponding to the second magnet unit; and a third coil unit provided at a position corresponding to the third magnet unit, and

37. An image pickup apparatus module comprising the lens driving apparatus according to any one of claims 21 to 36.

38. The camera module of claim 37, comprising: a second lens driving device adjacent to the lens driving device,

wherein the second lens driving device includes:

a housing;

a bobbin disposed in a housing of the second lens driving device;

A magnet provided on a housing of the second lens driving device, and the magnet faces the third coil.

39. The camera module of claim 38,

wherein the magnet of the second lens driving apparatus includes four magnet units disposed at four corners of a housing of the second lens driving apparatus.

40. The image pickup device module according to claim 39, wherein the second lens driving device includes a fourth coil provided at a position corresponding to the magnet of the second lens driving device.

41. An optical device, comprising:

a main body;

the image pickup device module according to claim 37 provided on the main body; and

42. A lens driving apparatus comprising:

a cover comprising an upper plate and a side plate;

a housing disposed in the cover;

a bobbin disposed in the housing;

a magnet disposed on the housing;

a first coil disposed on the bobbin; and

wherein the first magnet unit is a 2-pole magnet,

43. The lens driving apparatus of claim 42, wherein the second coil comprises: a first coil unit disposed at a position corresponding to the first magnet unit; a second coil unit disposed at a position corresponding to the second magnet unit; and a third coil unit disposed at a position corresponding to the third magnet unit.

44. The lens driving apparatus according to claim 43, wherein the number of turns of the coil wound in the first coil unit is larger than the number of turns of the coil wound in the second coil unit.

45. The lens driving apparatus according to claim 44, wherein the number of turns of the coil wound in the third coil unit is the same as the number of turns of the coil wound in the second coil unit.

46. The lens driving apparatus according to claim 44, wherein the substrate comprises: a hole; an inner peripheral surface formed by the aperture; a first side surface provided at a position corresponding to the first side portion of the housing; and a second side surface provided at a position corresponding to the second side portion of the housing, and

47. The lens driving apparatus according to claim 42, wherein each of the second magnet unit and the third magnet unit includes a first surface facing the first coil, and

48. The lens driving apparatus according to claim 42, comprising: a dummy member provided on the second side of the case, and

49. The lens driving apparatus of claim 48, wherein the first coil is not disposed between the bobbin and the dummy member.

50. The lens driving apparatus of claim 48, wherein the second coil is not disposed between the dummy member and the substrate.

51. The lens driving apparatus according to claim 48, wherein the dummy member comprises a non-magnetic material or has a magnetic strength weaker than that of the first magnet unit.

52. The lens driving apparatus according to claim 48, wherein the first coil includes a connection portion connecting the first coil portion and the second coil portion, and

53. The lens driving apparatus according to claim 42, wherein the second magnet unit and the third magnet unit are configured to move the bobbin in an optical axis direction, and

54. The lens driving apparatus according to claim 47, comprising:

an upper elastic member coupled to the bobbin and the housing; and

a support member coupled to the upper elastic member,

55. A lens driving apparatus comprising:

a cover comprising an upper plate and a side plate;

a housing disposed in the cover;

a bobbin disposed in the housing;

a magnet disposed on the housing;

a first coil disposed on the bobbin; and

56. The lens driving apparatus of claim 55, wherein the first magnet unit is a 2-pole magnet, and

wherein the second magnet unit is a 4-pole magnet.

57. The lens driving apparatus of claim 55, wherein the second coil comprises: a first coil unit disposed at a position corresponding to the first magnet unit; a second coil unit disposed at a position corresponding to the second magnet unit; and a third coil unit provided at a position corresponding to the third magnet unit, and

58. An image pickup apparatus module comprising the lens driving apparatus according to any one of claims 42 to 57.

59. The camera module of claim 58, comprising: a second lens driving device adjacent to the lens driving device,

wherein the second lens driving device includes:

a housing;

a bobbin disposed in a housing of the second lens driving device;

a fourth coil provided at a position corresponding to the magnet of the second lens driving apparatus,

60. An optical device, comprising:

a main body;

an image pickup device module according to claim 58 disposed on the main body; and